Improvement in machines for cutting and punching shingle bands



ZSheeIs- S heetR. JOHN S. EVERITT 8L CHARLES H. AVERY.

Patented Nov. 7, 1 87l;

[Jam-f %v f 4 Shingle Band Cutter.

. 2 She e t's':- Sheet 2. JOHN S. EVERITT 8LCHA'RLES H. AVERY...

Shingle Band Cutter.

No. 120,634. 7 Nov. 2,1871.

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JOHN S. EVERITT AND CHARLES H. AVERY, OF OSHKOSH, VVISGONSIN.

IMPROVEMENT IN MACHINES FOR CUTTING AND PUNCHING SHINGLE BANDS.

Specification forming part of Letters Patent No. 120,634, dated November7, 1871; antedated October 20, 1871.

To all whom it may concern:

Be it known that we, JOHN S. EVERITT and CHARLES H. AVERY, of the cityof Oshkosh, in the county of Winnebago and State of Wisconsin, haveinvented certain Improvements in Shingle-Band Gutters, of which thefollowing is a specification Our invention relates mainly to apeculiarshaped cam, used in combination with a yoke and a feed-guide,which works with either a parallel or a hinge motion, and which feedsthe sheet to the knife. It further relates to the use of feed andpunch-points attached to the yoke, in combination with a punching-barand oval springs for guiding the sheet to the punches. The office of thefeed-point is to feed the sheet closer to the knife than thepunch-points will do. It further relates to the construction and use ofa bar for holding the sheet while it is being out, which works incombination with the sash to which it is attached.

Figure 1 is an isometrical view of the machine. Fig. 2 is an under view.Fig. 3 is a rear view. Fig. 4 is an isometrical view of the parallelfeedguide. Fig. 5 is a longitudinal section through the line 1 l, theparallel guide being in its forward position and the sheet under theknife. Fig. 6 is a similar section, with the feed and punch-pointswithdrawn and the guide forced backward. Fig. 7 is a longitudinalsection of the hinge-motion feedguide through the line 2 2. Fig. 8 is avertical longitudinal section through the line 3 3.

A is the cam which propels the yoke and the feed-guide. B is the shaftto which it is attached. 0 is the yoke, which has a perpendicular motionrelatively to the box D, which forms the end of the parallel feed-guideE, to which it also communicates, through the action of the cam, ahorizontal motion. F is a box in which the feedguide E works, and isattached to the table G. H is the knife attached to the edge of thetable. I is the feed-point. J J are the punch-points. K is the shearattached to the sash L, which works between slides M M. N is aneccentric cam, which drives the sash, and is attached to the shaft 0, onthe end of which is the crank or drivin g-wheel P. Q is a yoke attachedto the sash, against which the cam N works in raising the sash. R is theholding-bar, connected by the adjustable rods S S to the lip T of thesash.

These rods pass loosely through the lip, and are furnished withadjusting-nuts U U, by which the lift of the holding-bar is adjusted.The spiral springs V V give the pressure to the holding-bar when thesash is brought down. W W are gears of the same diameter, connecting thecam-shafts B and 0. The cams A and N are so adjusted on the shafts withreference to each other that at the instant the sheet is drawn under theknife, through the action of the cam A, the knife or shear descends andcuts off the band through the action of the eccentric-cam N. X X areslots in the table, through which the yoke O and punchpoints J J work. Vis an oval spring, which guides the sheet steadily under the punchingbarZ and to the feed and punch-points. This spring is fastened at one endto the top of the punchingbar, while the other, or working-end, rests onthe table. The punching-bar is constructed with slots Y, into and alongwhich the feed and punchpoints work in punching and carrying forward thesheet. The peculiar form of the cam A has this advantage over the cam incommon use, as N, in that it communicates a direct perpendicular andhorizontal motion to the yoke instead of a circular one, and also allowsa period of rest at each quarter of a revolution, during one of whichthe band is cut by the knife or shears driven by the eccentric-cam N.The curve of the cam A is concentric with the shaft, and by reference toFig. 5 it will be seen that when the cam has turned so far that itsforward corner touches the lower side of the yoke C it forces itinstantly and directly downward, withdrawing the feed and punch-points.There is no further motion of the yoke till the forward corner of thecam touches the right-hand side (in the figure) of the yoke, when it isinstantly forced to the right, driving the feed-guide E in thatdirection, and bringing the feed-point I directly under the hole punchedin the sheet in the previous revolution, as seen in Fig. 6. The nextquarter turned by the cam forces the yoke directly upward, thefeed-point catching into the punched sheet, while new punches are madeby the punch-points. The next quarter turned by the cam forces the yoke,punch-points, and guide directly forward, carrying along the sheet andbringing it under the knife or shear K, which descends and cuts off theband during the period of rest at this quarter, as before stated. Thefeed-point is fixed to the yoke in front of the punch-points, and atsuch a distance from them as to catch into the punches, as explained.Fig. 7 is a modification of the feed-guide already described, in whichthe box D is dispensed with, the yoke being'attache'd to the feed-guideE, the motion of which is indicated by the dotted lines, lateral motionbeing allowed by the slot Y.

We claim- 1. As an improvement in machines for punching and cuttingmetallic shingle-bands, the combination, substantially as described, ofthe table 0, shaft B, cams AA, bars E E, punches I J, and fixed bar Z,all constructed and operating substantially as set forth.

2. The combination of the table 0, longitudinally andvertically-reciprocating feed-bars, with their punches, the holding-barR, and shear, substantially as described.

JOHN S. EVERITT. CHARLES H. AVERY. Witnesses:

O. PALMER, L. W. HALsEY.

